Vulnerability Report

CVE-2011-3416

Title: Microsoft Windows Server 2008 Auth Bypass

Other

Proof Of Concept

No public PoC currently indexed for CVE-2011-3416.

CWE Category CWE-264
Published Date Dec 30, 2011
Modified Date Jun 16, 2026
Exploit Status Not Found
Score 8.5 CVSS v2.0
Exploit Probability (EPSS)
45.58%

Vulnerability Summary

CVE-2011-3416: The Forms Authentication feature in the ASP.NET subsystem in Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5 SP1, 3.5.1, and 4.0 allows remote authenticated users to obtain access to arbitrary user accounts via a crafted username, aka "ASP.Net Forms Authentication Bypass Vulnerability."

Impacted Vendors

M
microsoft 5

Reference Links

http://www.us-cert.gov/cas/techalerts/TA11-347A.html https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-100 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14363 http://www.us-cert.gov/cas/techalerts/TA11-347A.html https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-100 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14363
CVSS v2.0
Source Entity [email protected]
Severity HIGH
8.5
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:M/Au:S/C:C/I:C/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2011-3416 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A
Complexity N/A
Privileges N/A
Interaction NONE
CVSS Vector String AV:N/AC:M/Au:S/C:C/I:C/A:C

Affected Stack

No specific products linked.